value1, value2... - are the new values. NOTE:In the Update statement, WHERE clause identifies the rows that get affected. If you do not include the WHERE clause, column values for all the rows get affected. For
Which means that 1 row was affected by the UPDATE statement.Note: Be careful with the WHERE clause, in the example above ALL rows where brand = 'Volvo' gets updated.Display TableTo check the result we can display the table with this SQL statement:...
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This statement would update all supplier names in the supplier table from IBM to HP. Example #2 - More complex example You can also perform more complicated updates. You may wish to update records in one table based on values in another table. Since you can't list more than one table in...
Specifies the number to be used for this SQL statement in EXPLAIN output and trace records. The number is used for the QUERYNO column of the plan table for the rows that contain information about this SQL statement. This number is also used in the QUERYNO column of the SYSIBM.SYSSTMT and...
SQL UPDATE Statement SQL Transactions SQL Indexes 如果你有更多关于SQL数据库UPDATE的问题,欢迎继续提问! 相关搜索: UPDATE SQL SQL sql数据库update语句 update sql sql update sql update语句 SQL Update SQL case表 SQL Update命令不更新数据库 sql server insert or update ...
SQL语法基础之UPDATE语句 作者:尹正杰 版权声明:原创作品,谢绝转载!否则将追究法律责任。 一.查看UPDATE语句的帮助信息 1>.查看UPDATE的帮助信息 mysql>?UPDATEName:'UPDATE'Description: Syntax:UPDATEisa DML statement that modifies rowsinatable. AnUPDATEstatement can startwithaWITHclausetodefine commontableexpressi...
The UPDATE statement modifies values of table rows. For each row to be modified, the UPDATE statement changes the values of the columns in the SET clause, assigning a constant to the associated column. If the WHERE clause is omitted, the UPDATE statement
Example: SQL UPDATE Statement Update Multiple Values in a Row We can also update multiple values in a single row at once. For example, -- update multiple values in the given rowUPDATECustomersSETfirst_name ='Johnny', last_name ='Depp'WHEREcustomer_id =1; ...
<update_statement> ::= UPDATE [OF] [<reference_name>] SET <set_update_clause>,... [KEY <key_spec>,...] [WHERE <search_condition>] [IGNORE TRIGGER] [NOWAIT] | UPDATE [OF] [<reference_name>] (<column_name>,...) VALUES (<extended_value_spec>,...) [KEY <key_spec>,.....